If you want to embed an MP3 audio file into a Blogger post, you can insert your HTML code for the music player. If you have an MP3 file on your computer, you can upload the song to obtain a direct ...

and use HTML mode in the Tumblr blog post editor each time you create a new post. Click the green "Update" button to update the post with the edited code. Click the "Create Post" button to add the ...